/*******************************************************************************
 * Copyright 2017 Bstek
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License.  You may obtain a copy
 * of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
 * License for the specific language governing permissions and limitations under
 * the License.
 ******************************************************************************/
package com.bstek.ureport.definition.searchform;

import java.util.HashMap;
import java.util.Map;

import com.bstek.ureport.build.Dataset;

/**
 * 渲染上下文
 *
 * @author Jacky.gao
 * @since 2017年10月23日
 */
public class RenderContext {
    private int id = 0;
    /** 数据集 */
    private Map<String, Dataset> datasetMap;
    /** 参数 */
    private Map<String, Object> parameters;
    /** 组件 */
    private Map<Component, String> componentMap = new HashMap<Component, String>();

    private Map<String, Object> metadata = new HashMap<String, Object>();

    public RenderContext(Map<String, Dataset> datasetMap, Map<String, Object> parameters) {
        this.datasetMap = datasetMap;
        this.parameters = parameters;
    }

    public Dataset getDataset(String datasetName) {
        return datasetMap.get(datasetName);
    }

    public Object getParameter(String name) {
        return parameters.get(name);
    }

    public String buildComponentId(Component component) {
        if (componentMap.containsKey(component)) {
            return componentMap.get(component);
        }
        String cid = "__c_" + (id++);
        componentMap.put(component, cid);
        return cid;
    }

    public Object getMetadata(String key) {
        return metadata.get(key);
    }

    public void putMetadata(String key, Object value) {
        metadata.put(key, value);
    }
}
